1602显示万年历

#include /包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include sbit SCK=P27;/时钟sbit SDA=P26;/数据sbit RST = P25;/ DS1302复位sbit RS = P20; /定义端口 sbit RW = P21;sbit EN = P22;#define RS_CLR RS=0 #define RS_SET RS=1#define RW_CLR RW=0 #define RW_SET RW=1 #define EN_CLR EN=0#define EN_SET EN=1#define DataPort P0bit ReadRTC_Flag;/定义读DS1302标志unsigned char l_tmpdate7=59,42,22,22,1,2,13;/秒分时日月周年unsigned char l_tmpdisplay18;code unsigned char write_rtc_address7=0x80,0x82,0x84,0x86,0x88,0x8a,0x8c; /秒分时日月周年 最低位读写位code unsigned char read_rtc_address7=0x81,0x83,0x85,0x87,0x89,0x8b,0x8d; /读的地址/*/* 函数声明 */*/void Write_Ds1302_byte(unsigned char temp); void Write_Ds1302( unsigned char address,unsigned char dat );unsigned char Read_Ds1302 ( unsigned char address );void Read_RTC(void);/read RTC void Set_RTC(void); /set RTC void InitTIMER0(void);/inital timer0/*- uS延时函数，含有输入参数 unsigned char t，无返回值 unsigned char 是定义无符号字符变量，其值的范围是 0255 这里使用晶振12M，精确延时请使用汇编,大致延时 长度如下 T=tx2+5 uS -*/void DelayUs2x(unsigned char t) while(-t);/*- mS延时函数，含有输入参数 unsigned char t，无返回值 unsigned char 是定义无符号字符变量，其值的范围是 0255 这里使用晶振12M，精确延时请使用汇编-*/void DelayMs(unsigned char t) while(t-) /大致延时1mS DelayUs2x(245); DelayUs2x(245); /*- 判忙函数-*/ bit LCD_Check_Busy(void) DataPort= 0xFF; RS_CLR; RW_SET; EN_CLR; _nop_(); EN_SET; return (bit)(DataPort & 0x80); /*- 写入命令函数-*/ void LCD_Write_Com(unsigned char com) while(LCD_Check_Busy(); /忙则等待 RS_CLR; RW_CLR; EN_SET; DataPort= com; _nop_(); EN_CLR; /*- 写入数据函数-*/ void LCD_Write_Data(unsigned char Data) while(LCD_Check_Busy(); /忙则等待 RS_SET; RW_CLR; EN_SET; DataPort= Data; _nop_(); EN_CLR; /*- 清屏函数-*/ void LCD_Clear(void) LCD_Write_Com(0x01); DelayMs(5); /*- 写入字符串函数-*/ void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) if (y = 0) LCD_Write_Com(0x80 + x); else LCD_Write_Com(0xC0 + x); while (*s) LCD_Write_Data( *s); s +; /*- 写入字符函数 void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) if (y = 0) LCD_Write_Com(0x80 + x); else LCD_Write_Com(0xC0 + x); LCD_Write_Data( Data); */*- 写入数字函数 字符的地址加0x30显示数字- */ void LCD_Write_num(unsigned char x,unsigned char y,unsigned char num) if (y = 0) LCD_Write_Com(0x80 + x); else LCD_Write_Com(0xC0 + x); LCD_Write_Data( 0x30+num); /*- 初始化函数-*/ void LCD_Init(void) LCD_Write_Com(0x38); /*显示模式设置*/ DelayMs(5); LCD_Write_Com(0x38); DelayMs(5); LCD_Write_Com(0x38); DelayMs(5); LCD_Write_Com(0x38); LCD_Write_Com(0x08); /*显示关闭*/ LCD_Write_Com(0x01); /*显示清屏*/ LCD_Write_Com(0x06); /*显示光标移动设置*/ DelayMs(5); LCD_Write_Com(0x0C); /*显示开及光标设置*/ /*/* 写一个字节 */*/void Write_Ds1302_Byte(unsigned char temp) unsigned char i; for (i=0;i=1; /右移一位 SCK=1; /*/* 写入DS1302 */*/void Write_Ds1302( unsigned char address,unsigned char dat ) RST=0;_nop_(); SCK=0;_nop_(); RST=1; _nop_(); /启动 Write_Ds1302_Byte(address);/发送地址 Write_Ds1302_Byte(dat);/发送数据 RST=0; /恢复/*/* 读出DS1302数据 */*/unsigned char Read_Ds1302 ( unsigned char address ) unsigned char i,temp=0x00; RST=0;_nop_();_nop_(); SCK=0;_nop_();_nop_(); RST=1;_nop_();_nop_(); Write_Ds1302_Byte(address); for (i=0;i=1;/右移一位_nop_(); _nop_(); _nop_(); SCK=1; RST=0;_nop_(); /以下为DS1302复位的稳定时间 _nop_();RST=0;SCK=0;_nop_();_nop_();_nop_();_nop_();SCK=1;_nop_();_nop_();SDA=0;_nop_();_nop_();SDA=1;_nop_();_nop_();return (temp);/返回/*/* 读时钟数据 */*/void Read_RTC(void) /读取 日历 unsigned char i,*p; p=read_rtc_address; /地址传递 for(i=0;i7;i+) /分7次读取 秒分时日月周年 l_tmpdatei=Read_Ds1302(*p); p+; /*/* 设定时钟数据 */*/void Set_RTC(void) /设定 日历unsigned char i,*p,tmp;for(i=0;i7;i+) /BCD处理tmp=l_tmpdatei/10;l_tmpdatei=l_tmpdatei%10;l_tmpdatei=l_tmpdatei+tmp*16; Write_Ds1302(0x8E,0X00); p=write_rtc_address;/传地址 for(i=0;i7;i+)/7次写入 秒分时日月周年 Write_Ds1302(*p,l_tmpdatei); p+; Write_Ds1302(0x8E,0x80);/*/* 定时器中断函数 */*/void tim(void) interrupt 1 using 1 /中断，用于数码管扫描 static unsigned char num; TH0=0xf5; TL0=0xe0; num+; if(10=num) /隔段时间读取1302的数据。时间间隔可以调整 ReadRTC_Flag=1; /使用标志位判断 num=0; /*- 显示部分-*/ void displaylcd(void) LCD_Init();LCD_Clear();LCD_Write_num(0,1,l_tmpdisplay0);LCD_Write_num(1,1,l_tmpdisplay1); /秒 LCD_Write_String(2,1,:); LCD_Write_num(3,1,l_tmpdisplay3);LCD_Write_num(4,1,l_tmpdisplay4);/分LCD_Write_String(5,1,:);LCD_Write_num(6,1,l_tmpdisplay6);LCD_Write_num(7,1,l_tmpdisplay7);/时LCD_Write_String(9,0,w);LCD_Write_String(10,0,e);LCD_Write_String(11,0,e);LCD_Write_String(12,0,k);LCD_Write_String(13,0,:); LCD_Write_num(14,0,l_tmpdisplay8);LCD_Write_num(15,0,l_tmpdisplay9);/周LCD_Write_String(2,0,-);LCD_Write_num(3,0,l_tmpdisplay11);/日LCD_Write_num(4,0,l_tmpdisplay12);LCD_Write_String(5,0,-);LCD_Write_num(6,0,l_tmpdisplay16);/月LCD_Write_num(7,0,l_tmpdisplay17);LCD_Write_num(0,0,l_tmpdisplay14);LCD_Write_num(1,0,l_tmpdisplay15); /年 l_tmpdisplay0=l_tmpdate2/16; l_tmpdisplay1=l_tmpdate2&0x0f; l_tmpdisplay3=l_tmpdate1/16;l_tmpdisplay4=l_tmpdate1&0x0f; l_tmpdisplay6=l_tmpdate0/16;l_tmpdisplay7=l_tmpdate0&0x0f;l_tmpdisplay8=l_tmpdate5/16; l_tmpdisplay9=l_tmpdate5&0x0f; l_tmpdisplay11=l_tmpdate4/16; l_tmpdisplay12=l_tmpdate4&0x0f; l_tmpdisplay14=l_tmpdate6/16; l_tmpdisplay15=l_tmpdate6&0x0f; l_tmpdisplay16=l_tmpdate3/16; l_tmpdisplay17=l_tmpdate3&0x0f; /*/* 定时器0初始化 */*/ void InitTIMER